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2 WATER ON THE EARTH75% of the earth is covered with water. 97% of the earth’s water is in the oceans. Only 3% of the earth’s water can be used for drinking. 75% of the world’s fresh water is frozen at the poles.75% of the earth is covered with water. 97% of the earth’s water is in the oceans. Only 3% of the earth’s water can be used for drinking. 75% of the world’s fresh water is frozen at the poles.

3 Water and our BodiesA person can only live for a few days without water. 83% of your blood is water. Your bones are 70% water.A person can survive without food for a few weeks but only a few days without water. 83% of your blood is water. Your bones are 70% water.

4 How Much Water?It takes litres to process a quarter pound hamburger, 7 ½ L to brush your teeth, 26½ L to flush a toilet and about L to have a shower. The amount of litres of water needed to make 4 new tyres for a car is about 7853 litres.It takes almost 4 litres to process a quarter pound hamburger, 7 ½ L to brush your teeth, 26 ½ L to flush a toilet and about L to have a shower. The amount of litres of water needed to make 4 new tyres for a car is about 7853 litres.

5 Water in the Olden DaysDuring medieval times a person used only litres per day. Ancient Egyptians treated water by siphoning water out of the top of huge jars after allowing the muddy water from the river Nile to settle. Hippocrates, the father of medicine, directed people in Greece to boil and strain water before drinking it.During medieval times a person used only litres per day. Ancient Egyptians treated water by siphoning water out of the top of huge jars after allowing the muddy water from the river Nile to settle. Hippocrates, the father of medicine, directed people in Greece to boil and strain water before drinking it.

6 WATER IN OTHER COUNTRIES70% of East African hospital visits are caused by contaminated water. The people in Zimbabwe have to make their own dams to store water.70% of East African hospital visits are caused by contaminated water. The people in Zimbabwe have to make their own dams to store water. This is because their country doesn’t have enough money to build big dams like Australia. The dams are made of rock and concrete.

7 THANK YOU FOR WATCHING OUR PRESENTATION!We hope you enjoyed it!THANK YOU FOR WATCHING OUR PRESENTATION! We hope you enjoyed it!